Here are some randomly selected joke topics
Police
Police Officer: Why are you driving in a bathing suit?
Motorist: I'm in a car pool.
Fat
Yo momma's so fat, when she went to the beach Greenpeace tried to drag her back in the water.
Break
What is the only thing you can break when you say its name?
Silence.
Cats
Do radioactive cats have eighteen half-lives?
Chickens
Why did the chicken cross the road??
Too long to go around.....
Passengers
Passengers hit by cancelled trains
Time
Time flies like an arrow, but fruit flies like a banana.
Zebra
What do you get if you cross a zebra with an ape man?
Tarzan stripes forever.
Doctors
What did the doctor say to the tonsil?
You look so cute, I would like to take you out.